Kerkhof, L., and Ward, B.B. (1993) Comparison of nucleic-acid hybridization and fluorometry for measurement of the relationship between RNA/DNA ratio and growth-rate in a marine bacterium. Appl Environ Microbiol59: 1303–1309.

Poulsen, L.K., Ballard, G., and Stahl, D.A. (1993) Use of ribosomal-RNA fluorescence insitu hybridization for measuring the activity of single cells in young and established biofilms. Appl Environ Microbiol59: 1354–1360.